lints: A bunch of extra style lint fixes (#36568)

- **lints: Fix 'doc_lazy_continuation'**
- **lints: Fix 'doc_overindented_list_items'**
- **inherent_to_string and io_other_error**
- **Some more lint fixes**
- **lints: enable bool_assert_comparison, match_like_matches_macro and
wrong_self_convention**


Release Notes:

- N/A

crates/assistant_slash_commands/src/diagnostics_command.rs

@@ -189,7 +189,7 @@ impl SlashCommand for DiagnosticsSlashCommand {
 
         window.spawn(cx, async move |_| {
             task.await?
-                .map(|output| output.to_event_stream())
+                .map(|output| output.into_event_stream())
                 .context("No diagnostics found")
         })
     }